1. Project Gutenberg
Many books found here are classics. Books are available for the iPad and iPhone.
2. MobileRead
Books in various genres may be found here. There is no fee to join, and members receive ad-free access.
3. ePubBooks
A great source for classic books, and great for students with required reading lists.
4. Feedbooks
Thousand of books in hundreds of different genres.
6. Barnes and Noble
This is also a fantastic source from authors and publishers promoting books. Classic books are also available.
7. Baen
Sci-Fi and Fantasy book lovers can find many books of those genres at this site. Simply download and read to your heart’s content.
8. eReader IQ
Daily iPad freebies are available here.
9. Open Culture
A collection of 500 free e-book classics for the iPad.
10. Free Online Textbooks
Students will love this collection of popular 150 texts available at no cost. Check the site before purchasing anywhere else.
11. Many Books
Popular, classical literature can be found at this site.
12. iPad Books Download
Books on marketing, business insights, and more are available on this site.
13. Harlequin
Romantics can find the perfect romance novels at this site.
14. Gizmo’s Freeware
Chock-full of biographies and autobiographies.
15. Ebooks Free Download
Free comic books abound.
16. Google.books
There are plenty of free books available through Google Books and the Google Play store.
17. Bookyards
Even the most avid bibliophile won’t be able to get enough books from this site.
18. DigiLibraries
Find many books of various genres on this site.
19.BookBoon
Filled with books specific to professionals, such as engineering and mathematics.
20. GetFreeBooks
Find adventure, inspiration, and more, including free magazines.